329 lines
8.4 KiB
C
329 lines
8.4 KiB
C
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/* Icon View/Icon View Basics
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*
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* The GtkIconView widget is used to display and manipulate icons.
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* It uses a GtkTreeModel for data storage, so the list store
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* example might be helpful.
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*/
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#include <glib/gi18n.h>
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#include <gtk/gtk.h>
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#include <string.h>
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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static GtkWidget *window = NULL;
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#define FOLDER_NAME "/iconview/gnome-fs-directory.png"
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#define FILE_NAME "/iconview/gnome-fs-regular.png"
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enum
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{
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COL_PATH,
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COL_DISPLAY_NAME,
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COL_PIXBUF,
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COL_IS_DIRECTORY,
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NUM_COLS
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};
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static GdkPixbuf *file_pixbuf, *folder_pixbuf;
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char *parent;
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GtkWidget *up_button;
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/* Loads the images for the demo and returns whether the operation succeeded */
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static void
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load_pixbufs (void)
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{
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if (file_pixbuf)
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return; /* already loaded earlier */
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file_pixbuf = gdk_pixbuf_new_from_resource (FILE_NAME, NULL);
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/* resources must load successfully */
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g_assert (file_pixbuf);
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folder_pixbuf = gdk_pixbuf_new_from_resource (FOLDER_NAME, NULL);
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g_assert (folder_pixbuf);
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}
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static void
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fill_store (GtkListStore *store)
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{
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GDir *dir;
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const char *name;
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GtkTreeIter iter;
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/* First clear the store */
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gtk_list_store_clear (store);
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/* Now go through the directory and extract all the file
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* information */
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dir = g_dir_open (parent, 0, NULL);
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if (!dir)
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return;
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name = g_dir_read_name (dir);
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while (name != NULL)
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{
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char *path, *display_name;
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gboolean is_dir;
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/* We ignore hidden files that start with a '.' */
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if (name[0] != '.')
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{
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path = g_build_filename (parent, name, NULL);
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is_dir = g_file_test (path, G_FILE_TEST_IS_DIR);
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display_name = g_filename_to_utf8 (name, -1, NULL, NULL, NULL);
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gtk_list_store_append (store, &iter);
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gtk_list_store_set (store, &iter,
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COL_PATH, path,
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COL_DISPLAY_NAME, display_name,
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COL_IS_DIRECTORY, is_dir,
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COL_PIXBUF, is_dir ? folder_pixbuf : file_pixbuf,
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-1);
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g_free (path);
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g_free (display_name);
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}
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name = g_dir_read_name (dir);
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}
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g_dir_close (dir);
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}
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static int
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sort_func (GtkTreeModel *model,
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GtkTreeIter *a,
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GtkTreeIter *b,
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gpointer user_data)
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{
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gboolean is_dir_a, is_dir_b;
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char *name_a, *name_b;
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int ret;
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/* We need this function because we want to sort
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* folders before files.
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*/
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gtk_tree_model_get (model, a,
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COL_IS_DIRECTORY, &is_dir_a,
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COL_DISPLAY_NAME, &name_a,
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-1);
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gtk_tree_model_get (model, b,
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COL_IS_DIRECTORY, &is_dir_b,
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COL_DISPLAY_NAME, &name_b,
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-1);
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if (!is_dir_a && is_dir_b)
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ret = 1;
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else if (is_dir_a && !is_dir_b)
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ret = -1;
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else
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{
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ret = g_utf8_collate (name_a, name_b);
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}
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g_free (name_a);
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g_free (name_b);
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return ret;
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}
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static GtkListStore *
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create_store (void)
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{
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GtkListStore *store;
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store = gtk_list_store_new (NUM_COLS,
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G_TYPE_STRING,
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G_TYPE_STRING,
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GDK_TYPE_PIXBUF,
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G_TYPE_BOOLEAN);
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/* Set sort column and function */
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gtk_tree_sortable_set_default_sort_func (GTK_TREE_SORTABLE (store),
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sort_func,
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NULL, NULL);
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gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (store),
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GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
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GTK_SORT_ASCENDING);
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return store;
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}
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static void
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item_activated (GtkIconView *icon_view,
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GtkTreePath *tree_path,
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gpointer user_data)
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{
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GtkListStore *store;
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char *path;
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GtkTreeIter iter;
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gboolean is_dir;
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store = GTK_LIST_STORE (user_data);
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gtk_tree_model_get_iter (GTK_TREE_MODEL (store),
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&iter, tree_path);
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gtk_tree_model_get (GTK_TREE_MODEL (store), &iter,
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COL_PATH, &path,
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COL_IS_DIRECTORY, &is_dir,
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-1);
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if (!is_dir)
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{
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g_free (path);
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return;
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}
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/* Replace parent with path and re-fill the model*/
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g_free (parent);
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parent = path;
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fill_store (store);
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/* Sensitize the up button */
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gtk_widget_set_sensitive (GTK_WIDGET (up_button), TRUE);
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}
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static void
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up_clicked (GtkButton *item,
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gpointer user_data)
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{
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GtkListStore *store;
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char *dir_name;
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store = GTK_LIST_STORE (user_data);
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dir_name = g_path_get_dirname (parent);
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g_free (parent);
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parent = dir_name;
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fill_store (store);
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/* Maybe de-sensitize the up button */
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gtk_widget_set_sensitive (GTK_WIDGET (up_button),
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strcmp (parent, "/") != 0);
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}
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static void
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home_clicked (GtkButton *item,
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gpointer user_data)
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{
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GtkListStore *store;
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store = GTK_LIST_STORE (user_data);
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g_free (parent);
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parent = g_strdup (g_get_home_dir ());
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fill_store (store);
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/* Sensitize the up button */
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gtk_widget_set_sensitive (GTK_WIDGET (up_button),
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TRUE);
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}
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static void close_window(void)
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{
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gtk_window_destroy (GTK_WINDOW (window));
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window = NULL;
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g_object_unref (file_pixbuf);
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file_pixbuf = NULL;
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g_object_unref (folder_pixbuf);
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folder_pixbuf = NULL;
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}
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GtkWidget *
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do_iconview (GtkWidget *do_widget)
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{
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if (!window)
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{
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GtkWidget *sw;
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GtkWidget *icon_view;
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GtkListStore *store;
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GtkWidget *vbox;
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GtkWidget *tool_bar;
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GtkWidget *home_button;
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window = gtk_window_new ();
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gtk_window_set_default_size (GTK_WINDOW (window), 650, 400);
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gtk_window_set_display (GTK_WINDOW (window),
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gtk_widget_get_display (do_widget));
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gtk_window_set_title (GTK_WINDOW (window), "Icon View Basics");
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g_signal_connect (window, "destroy",
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G_CALLBACK (close_window), NULL);
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load_pixbufs ();
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
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gtk_window_set_child (GTK_WINDOW (window), vbox);
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tool_bar = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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gtk_box_append (GTK_BOX (vbox), tool_bar);
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up_button = gtk_button_new_with_mnemonic ("_Up");
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gtk_widget_set_sensitive (GTK_WIDGET (up_button), FALSE);
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gtk_box_append (GTK_BOX (tool_bar), up_button);
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home_button = gtk_button_new_with_mnemonic ("_Home");
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gtk_box_append (GTK_BOX (tool_bar), home_button);
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sw = gtk_scrolled_window_new ();
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gtk_scrolled_window_set_has_frame (GTK_SCROLLED_WINDOW (sw), TRUE);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
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GTK_POLICY_AUTOMATIC,
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GTK_POLICY_AUTOMATIC);
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gtk_widget_set_vexpand (sw, TRUE);
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gtk_box_append (GTK_BOX (vbox), sw);
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/* Create the store and fill it with the contents of '/' */
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parent = g_strdup ("/");
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store = create_store ();
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fill_store (store);
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icon_view = gtk_icon_view_new_with_model (GTK_TREE_MODEL (store));
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gtk_icon_view_set_selection_mode (GTK_ICON_VIEW (icon_view),
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GTK_SELECTION_MULTIPLE);
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g_object_unref (store);
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/* Connect to the "clicked" signal of the "Up" tool button */
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g_signal_connect (up_button, "clicked",
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G_CALLBACK (up_clicked), store);
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/* Connect to the "clicked" signal of the "Home" tool button */
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g_signal_connect (home_button, "clicked",
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G_CALLBACK (home_clicked), store);
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/* We now set which model columns that correspond to the text
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* and pixbuf of each item
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*/
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gtk_icon_view_set_text_column (GTK_ICON_VIEW (icon_view), COL_DISPLAY_NAME);
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gtk_icon_view_set_pixbuf_column (GTK_ICON_VIEW (icon_view), COL_PIXBUF);
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/* Connect to the "item-activated" signal */
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g_signal_connect (icon_view, "item-activated",
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G_CALLBACK (item_activated), store);
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gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), icon_view);
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gtk_widget_grab_focus (icon_view);
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}
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if (!gtk_widget_get_visible (window))
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gtk_widget_set_visible (window, TRUE);
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else
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gtk_window_destroy (GTK_WINDOW (window));
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return window;
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}
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